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aes: Remove AES-XEX

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AES-XEX is a building block for other cryptographic standards and not yet a
standard in and of itself. We'll just provide the standardized AES-XTS
algorithm, and not AES-XEX. The AES-XTS algorithm and interface provided
can be used to perform the AES-XEX algorithm when the length of the input
is a multiple of the AES block size.
This commit is contained in:
Jaeden Amero 2018-05-17 16:42:08 +01:00
parent 010c2cb456
commit e9ecf00007
8 changed files with 2 additions and 3794 deletions
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29
programs/test/benchmark.c
View file

@ -99,7 +99,7 @@ int main( void )
#define OPTIONS \
"md4, md5, ripemd160, sha1, sha256, sha512,\n" \
"arc4, des3, des, camellia, blowfish,\n" \
"aes_cbc, aes_gcm, aes_ccm, aes_cmac, aes_xex, aes_xts,\n" \
"aes_cbc, aes_gcm, aes_ccm, aes_cmac, aes_xts,\n" \
"des3_cmac, havege, ctr_drbg, hmac_drbg\n" \
"rsa, dhm, ecdsa, ecdh.\n"
@ -233,7 +233,7 @@ unsigned char buf[BUFSIZE];
typedef struct {
char md4, md5, ripemd160, sha1, sha256, sha512,
arc4, des3, des,
aes_cbc, aes_gcm, aes_ccm, aes_cmac, aes_xex, aes_xts,
aes_cbc, aes_gcm, aes_ccm, aes_cmac, aes_xts,
des3_cmac, aria, camellia, blowfish,
havege, ctr_drbg, hmac_drbg,
rsa, dhm, ecdsa, ecdh;
@ -279,8 +279,6 @@ int main( int argc, char *argv[] )
todo.des = 1;
else if( strcmp( argv[i], "aes_cbc" ) == 0 )
todo.aes_cbc = 1;
else if( strcmp( argv[i], "aes_xex" ) == 0 )
todo.aes_xex = 1;
else if( strcmp( argv[i], "aes_xts" ) == 0 )
todo.aes_xts = 1;
else if( strcmp( argv[i], "aes_gcm" ) == 0 )
@ -430,29 +428,6 @@ int main( int argc, char *argv[] )
mbedtls_aes_free( &aes );
}
#endif
#if defined(MBEDTLS_CIPHER_MODE_XEX)
if( todo.aes_xex )
{
int keysize;
mbedtls_aes_context crypt_ctx, tweak_ctx;
mbedtls_aes_init( &crypt_ctx );
mbedtls_aes_init( &tweak_ctx );
for( keysize = 128; keysize <= 256; keysize += 64 )
{
mbedtls_snprintf( title, sizeof( title ), "AES-XEX-%d", keysize );
memset( buf, 0, sizeof( buf ) );
memset( tmp, 0, sizeof( tmp ) );
mbedtls_aes_setkey_enc( &crypt_ctx, tmp, keysize );
mbedtls_aes_setkey_enc( &tweak_ctx, tmp, keysize );
TIME_AND_TSC( title,
mbedtls_aes_crypt_xex( &crypt_ctx, &tweak_ctx, MBEDTLS_AES_ENCRYPT, BUFSIZE, tmp, buf, buf ) );
}
mbedtls_aes_free( &crypt_ctx );
mbedtls_aes_free( &tweak_ctx );
}
#endif
#if defined(MBEDTLS_CIPHER_MODE_XTS)
if( todo.aes_xts )
{